Improvement in machines for closing sheet-metal boxes



O. G. EVERITT. MACHINE FOR CLOSING TIN 0R SHEET METAL BOXES.

No. 11,962. Patented Nov. 21, 1854.

UNIT D STATES PATENT OFFICE.

CHARLES G. EVERITT, OF BROOKLYN, NEW -YORK IMPROVEMENT IN MACHINES FOR CLOSING SHEET-METAL BOXES.

Specification forming part of Letters Patent. No I L962, dated XrYefflbtl' 2!, 18 54.

1'0 all wltom it 111,11 concern."

Be it known that 1, CHARLES G. EVER'ITT,

of Brooklyn, in the county of Kings and State of -N ew York, have invented certain new and useful Improvements in Machines for Closing Sheet-Metal Boxes; and I do hereby declare that the following is' a full, clear, and exacting or movable frame on which the friction rollers are placed.

Similar letters of reference indicate corre spending per ts in the several figures.-

My invention consists, first, in the arrangement of a driving-shaft, upper'rollcr-shal't with adjustable sliding boxes and springs, as

will be hereinafter shown, whereby varioussized roller-heads may be applied to the machine.

My invention consists, second, in the arrangement of an adjustable spring-frame with adjustable friction-rollers, and in relation to the roller-heads, as will be hereinafter shown, for the purpose of guiding and sustaining the sheet-metal pieces of various shapes and of different widths.

To enable others skilled in the art to make and use my invention, I will proceed to de scribe its construction and operation,

A, Fig. 1, represents a rectangular frame, on the upper part of which a shaft, B, works in suitable bearings, a a; On the end of this shaft B a roller-head, O, is attached. On each side of the frame A there is a sliding box, D, which is attached to the frame A by a set-screw, b, passing through a slot, 0, in the lower end of the box and into the frame A, and at the upper ends of these boxes are bearings d d one on eachin which journals 0 0, attached to the lower end of a frame, E, work.

1 is a shaft which works in suitable bearings a a at the lower part of the frame E. This shaft F is provided with a roller-head, G at its end, the roller-head G being over or above the head 0, which is on the lower shaft, B.

. H H are spiral springs (one only is shown in Fig. 1) placed between the two frames A E. The springs serve to keep the two rollerheads a certain distance apart when the upper I frame is not depressed, which is done by plae ing the foot upon a t-rcadle, I, underneath the machine, the treadle I being connected to the frame E by a rod,f. V v J is a shaft which works in suitable .bearings, 1 upon the upper part of the frame QB. A crank, K, is attached to the outer 'eud jof this shaft, and a toothed driving vhcelfL, is; hung uppn the shaft,. which driving-wheel gears into a pinion, M,on the upper rollershaft, .F, the pinion M gearing intoa pinion, N, on the lower roller-shaft, B. p V is a frame formed of metal rods hit, which run horizontally through the lower part'of the frame A, as shown in Fig. 1. These rods have each two stops, z 0', upon them, the stop 1" bei-ng on the outer side of the frame.- Aspiral spring, j, is placed on each rod, between the inner stop, t, and the end of the frame A, as

clearly. shown in Fig. 1. The stops 11 i/"are rendered adjustable by set-screws k, by which they may be adjusted upon'any part of the rods. The two rods h h are bent vertically and in a bow or elliptical form just back of the roller-heads O G, the rods being-united at the top, and having an upright'arbor, l, on which a friction roller, m, is-,placed. 7 (Shown more particularly in Fig. 2.) A vertical center rod, n, is also secured midway between the two curved rods forming the bow, and upon this center rod a friction-roller, o,- is placed, and secured at any desired height by an adj ustablej stop, 1). The lower end of the center rod, n, is stepped in a cross-bar, 1?, attached to the rods h h at points where they are bent upward.

Byclosing the boxes is simply meant securing the tops and bottoms to the'sides 'or' This is' done by bending or body of the box. compressing .the ledge on the top or bottom piece tightly around the body and side strip of the lid, and is performed by the revolutions of the roller-heads G C.

Operation: The top and bottom pieces ofthe box, as well as the body and side strip of the lid, are commonly termed blanks. The blanks rest upon the lower head, 0, the fingers being pressed against the top orbottom piece, and the edge of the blank'presses against the friction-rollers m o, and thespring-frame O is forced back sufficiently to allo'wthe ledge at the edges of the top and bottom pieces to be directly between the two roller-heads G C.

."Ihe foot is then applied to the treudle I and be seen, exerts a. pressure against the edge of the blank and the hand or fingers against the outer side of the top or bottompiece, and. consequently the two parts are keptin proper position while being acted upon lr' v the rollerheads, (see Fig. 1,) in which the hlanlerepresented in red by 1 and the top orhott-om piece by r is being acted upon by the roller-heads. The position of the spring-frame 0 when forced back 'is shown w thered lines, and the'up'per frame, 1* when depressed. is also shown by red lines.

By hating the friction-roller 0 adjust able, or so arranged as to he raised or lowered, blanks of various sizes may be operated upon with the same machine, and also ditt'erent-sized roller-heads may be used by elevating or. depressing the upper frame, E, which may be done by means of two sliding boxes; 1'), larger pinions being in that case employed upon the roller-shafts l l.

' Boxes ofelliptical or ovalto rm may he closed by having the friction-roller 0 made of suiiieient length, so that the largest and smallest diameters of the blank will work against it.

By. having the (l rivi ugwheel 'l'i placed di rectl y over the pinions M N the machine is rendered more portable and convenient and much labor and expense saved in its construction.

The spring-frame 0 may be adjusted sot-hat tlf friction rollers in. 0 maybe set farther back from the roller-heads by altering the position of the stops-i '1". This is important, as both long and short boxes may he closed on the same machine.

I do not-claim the roller-shafts 1; F, nor the ro'lleeheads (1(1, t'or theylnive been previously used; but

What I do claim as new, and des re to secure by Letters Patent, is 1. The arrangement, as herein shown, of the driving-shalt J and upper roller-shaft with the adjustable sliding boxes 1'), springs J H. and treadle l. in relation to th'elow-ershatt,

11, and frame ofthe machine for the really-ad justment. and adaptat ion of other roller-heads,

and for the putting in and taking out of the sheet-metal articles being made.

r 2. Thearrangementot'theadjnstahlespringframe ()with its adjustable friction-rollers m and in relation to the rolter-heads CG for thepurpose of guiding andsustaining the sheetmetal pieces 01' various shapes and of ditt'erent ,widths. as herein shown and described.

CHARLES C. EVERl'lT. I

v Witnesses:

.i'os. Ul'lt). MAsoN, s. WALES. 

